Avril Lavigne?s MuchMusic Awards F-Bomb

She?s no stranger to on-stage obscenity, and last night (June 19) Avril Lavigne was up to her old tricks during the 2011 MuchMusic Video Awards. The ?Complicated? songstress took the stage in Toronto, Canada to perform her hit single ?What the Hell? and brought her trucker mouth along for the ride. During the course of the song, Avril let an F-bomb slip, which was a bit problematic for the show,